// Copyright 2012 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef V8_RUNTIME_PROFILER_H_ #define V8_RUNTIME_PROFILER_H_ #include "src/allocation.h" namespace v8 { namespace internal { class BytecodeArray; class Isolate; class InterpretedFrame; class JSFunction; enum class OptimizationReason : uint8_t; class RuntimeProfiler { public: explicit RuntimeProfiler(Isolate* isolate); void MarkCandidatesForOptimization(); void NotifyICChanged() { any_ic_changed_ = true; } void AttemptOnStackReplacement(InterpretedFrame* frame, int nesting_levels = 1); private: void MaybeOptimize(JSFunction function, InterpretedFrame* frame); // Potentially attempts OSR from and returns whether no other // optimization attempts should be made. bool MaybeOSR(JSFunction function, InterpretedFrame* frame); OptimizationReason ShouldOptimize(JSFunction function, BytecodeArray bytecode_array); void Optimize(JSFunction function, OptimizationReason reason); void Baseline(JSFunction function, OptimizationReason reason); Isolate* isolate_; bool any_ic_changed_; }; } // namespace internal } // namespace v8 #endif // V8_RUNTIME_PROFILER_H_